Medicinal compound



Patented Feb. 26, 1929.

UNITED STATES 1,703,317 PATENT oFncE.

cAnLIsLE N. ANnERsoN, or nmnor'r, MICHIGAN, AssIGNon '10 PARKE, nAvIs &COMPANY, or DETROIT, MICHIGAN, A coRr'onArro or rncnreaN.

' mEnIorNAI. COMPOUND.

No Drawing.

The object of the invention is to produce a product in such form as tobe convenient for administration to the animals in a single dose;

and whichwill remain stable without chemical decomposition. It has beendiscovered that tetrachlorethyl- .ene when chemical-l pure is an idealanthelmintic product and one which can be used safely on a large numberof different animals, such as horses, cattle, swine, goats, dogs,

16 sheep, foxes, cats and poultry. My invention conslsts in associatinwith tetrachlorethylene means for maintaining the same in a stablecondition when the product is in a form adapted for commercialdistribution and use.

According to my invention the tetrachlorethylene is marketed in such amanner as to prevent the penetration of the .actimc rays of lighttheremto, and this is preferably done by adding to the liquid substancea suitable 26 coloring material. A red color is particularly desirabledue to the fact that it absorbs the light rays of shorter lengthassociated with the ultra end of the spectrum,-which rays are the, onesmost active in producing decomposition. Any other color adapted toabsorb the actinic rays might be-used but since the red also presents apleasing appearance it is the one preferably selected.

The coloration of the liquid may be ob- 35. tained in any suitable way,such for example as by incorporating with the tetrachlorethylene ananiline dye or some other suitable oil lme dye known by the trade nameof Oil Soluble Red 0 is well suited. for the purpose but any other dyeor coloring material adapt-v ed to prevent penetration o the actinicrays may'be used as an equivalent. 1 The dyed tetrachlorethylene ispreferably marketed in ca sule form since in this con dition it is easiy handled and administered to the animals. The'capsule form also per-.mits marketing the liquid in different sizes so that each ca sulecontains just the ,required' amount or anindividual dose for aparticular .class of animals. The capsules are usually ofsolublesuitable material may if desired.

The capsules are ordinarily transparent, thus tion whatsoever.

gelatin, although other Application filed February 6, 1928. Serial No.252,418.

permitting the colored tetrachlorethylenc to be visible through thecapsule walls and giv ing a distinctive appearance to the product. Thefact that thecapsules are transparent illustrates the necessity ofincorporating the coloring mater in the product, for otherwise theliquid' would often-be exposed to the actinic rays of the sunlight forconsiderable periods of time prior to its use. It hasbeen discoveredthat tetrachlorethylene when unprotected from these actin'ie rays issubject to chemical decompositlon form ng undes rable lmpurltles, whichmay in some instances be actually injurious to the animals. When theserays are kept from-the liquid it can be stored indefinitely without anydecomposi- Therefore by associating the coloring material with thetetrachlorethylene I have produced an anthelmintic product, which is notonly a very efiective remedy for afilicted animals but is entirel safefor use due to its freedom from all proti ucts of decomposition. H r

As an alternative method of marketin the new product, the coloringmatter maybe incorporated into the walls ofthe capsule itsel in whichcase the tetrachlorethylene within the capsule may be uncolored and inits natural state. Thus a soluble gelatin capsule may have a red colorincorporated therein so that the transparent walls will absorb theactinic rays penetration into the liqui and prevent their In eitherembodiment of my inventio I i soluble dye. As a specific example, an anim n i n to h elmi'ntic at is convenient} for animals in pro er dosage,lsco'nvenient for, manufacture distribution and storage prior to itsactual use and 1s dependable as to qual ity since it remains stable at,all times and uncontaminated with products of decomposition.

. "What- I claim as myinvention is:

- 1. An anthelmintic product comprising tetrach orethylene and means forprotecting-the tetrachlorethylene from actinic ra s. 2. An anthelminticproduct a apted for administration to animals comprising a capsulecontaining liquid tetrachlorethylene and means for preventingpenetration of the actinic rays into said liquid.

3. An anthelmintic produ ct adapted for administration to animalscomprising liquid tetiacliloi'ethylene and a coloring materialincorporated therein tor preventing penetration of actinic rays oflight.

4:. -An anthelmintic product adapted for administration to animalscomprisingliquid tetraohloretliylene and an oil soluble i'ed dyedissolved in said liquid.

5. An anthelinintic product adapted for administration to animalscomprising a s0luble gelatin capsule having liquid tetrachlor ethyleneWithin the same and coloring mate- In testimony whereof l affix mysignature.

CARLLSLE N. ANDERSON,

